Women dressed as nuns pose for pictures during Halloween celebrations in the Shibuya district in Tokyo, Japan October 31, 2015. (Photo by Thomas Peter/Reuters)
Women in costumes walk as they participate in Halloween celebrations in the downtown of Seoul, South Korea, October 31, 2015. (Photo by Kim Hong-Ji/Reuters)
Dancers perform during the annual Tbilisoba festival, celebrating Tbilisi City Day in Tbilisi, Georgia, October 17, 2015. Tbilisoba is an annual October festival, celebrating the diversity and history of Tbilisi, the capital of Georgia. (Photo by David Mdzinarishvili/Reuters)
A clown performs next to the Monument to the Revolution as he takes part in the Latin American Clown Convention in Mexico City, Mexico, October 21, 2015. The convention will be held from October 19 to 22 in Mexico City. (Photo by Henry Romero/Reuters)